Mobile OS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Mobile OS Interview Questions

Questions Answers Views Company eMail

What’s the difference between an “app id” and a “bundle id” and what is each used for?

840

What is a category and when is it used?

846

What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?

715

What are the limits of accessibility ?

802

Explain the characteristics of ios?

760

Explain place holder constraint

730

Explain differences between foundation and corefoundation

779

What is auto-layout?

864

What is the difference between let and var in swift?

854

What is the difference between atomic and non-atomic properties? Which is the default for synthesized properties? When would you use one over the other?

726

Explain the difference between copy and retain?

875

What is the difference between synchronous & asynchronous task ?

846

Why do you generally create a weak reference when using self in a block?

827

what’s accessibilityhint?

795

What is made up of nserror object?

810

Un-Answered Questions { Mobile OS }

What's the difference between android os and android system?

900

Explain datepickerdialog in android?

1029

How do I get to the boot menu in ubuntu?

718

What is google dagger?

800

What are the different modes of operations used in services for android?

866

What do you mean by optional chaining in swift?

754

Is swift object oriented programming?

820

What is the difference between retain & assign in iOS operating system?

968

Explain me app bundle?

792

Why is it called ubuntu?

778

Give a brief idea about android application architecture?

835

What's the latest android operating system?

915

applications that can be used with iphone

749

What is difference between nsnotification and delegate?

737

Tell me in my code the method marked by [ondeserialized] is never called after deserialization. Is this a known issue?

954

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